My first KitchenAid dishwasher growing up was very similar to this model. It was a KDD67B model. The Deluxe without the Soak and scrub cycle. It had 2 buttons...Full Cycle and Rinse Hold. Good machine and lasted thru 2 loads of dishes a day for a family of 7. The KDD67B had the pressure switch in the sump and a deeper sump. Plus it had what KitchenAid called the SaniGuard filter. Stainless steel on top plate and plastic for the bottom part plus a course strainer tray .
The performance was good with this machine even though the wash cycle was a whole 7 mins. The top rack at times didnt get fully cleaned and sometimes there would be bits of food on the glasses. That would require me to run the dishwasher again without the bottom rack in so it would get clean..and it did.
The amazing part that i liked was the fact o could take the upper rack out and put baking sheets standing up and that was along with pots and pans.
Great machine you have there.
Here is the wash arm support for the KA-clearly an 18 series pump. The machine is such an interesting mix of 17 and 18. It does pump some water around in the tank....all 50 gpm going through the one wash arm. So far eveything has come out clean both top and bottom racks. I am thinking the rpm's of the wash arm may approach 50 in this machine
That machine was neat in the fact that it did a one minute purge to clear the lines of cold water and start the first wash with hotter water.
It was always and excellent performer.
This the 1st DW my parents bought. That machine was a workhorse. I'm thinking it's 1977-78 vintage, correct me if I'm wrong. And yes, that machine got everything sparkling, but my Mom was and still is a pre-rinse fanatic.
Andrew,
The machine uses the fan and heating element outside the tank(flo-thru drying) to dry the dishes. I haven't changed this dishwasher at all.......this was the way it was manufactured.